Change fingerprinting is applied to a text file, database table, or data feed to determine the timeframe in which an identified “wild file” was generated, even when its file creation meta-data is missing. Each row in the data contains information on a single object. At least one column in the data contains an age for each object at the time the file was created. The age data can be used to determine the date the file was created, such as by using recognition processing or by looking at data that has been added or dropped from the file based on age. By identifying the timeframe in which the wild file was created, the data owner may greatly reduce the computational burden needed to determine if the wild file contains stolen data because it greatly reduces the universe of files that must be compared to the wild file.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein the person age information is a date of birth.
3. The method of claim 1, wherein the person age information is a manufacturing date.
4. The method of claim 1, wherein the person age information is an age range.
5. The method of claim 4, wherein the true person age data comprises an age range of two years.
6. The method of claim 4, wherein the step of identifying a field with person age information on the wild file records comprises the step of identifying a field in the wild file that contains an age range, and wherein the step of comparing the true person age data to the person age information from the wild file records to identify a wild file creation period comprises the step of comparing files released in multiple months to the data of the wild file to identify a month when an age range changed for at least one of the records.
7. The method of claim 6, wherein for each of the records if the step of applying a recognition process to the record in the data of the wild file does not result in a match, then the record is discarded for further processing.
8. The method of claim 1, wherein the step of applying a recognition process comprises the identification of true person age data derived from original legally accepted documents.
9. The method of claim 1, wherein the step of selecting only those data files corresponding to the wild file creation date comprises the steps of first selecting only those data files sent during a given year and then selecting from among those files sent during a given year those data files sent during a given month.
10. The method of claim 1, wherein the step of selecting only those data files corresponding to the wild file creation date comprises a single step of selecting only those data files sent during a given year and a given month.
12. The method of claim 11, wherein the person age information comprises an age range.
13. The method of claim 12, wherein each of the data files was released in a different month of a given year.
14. The method of claim 13, wherein the data files comprises twelve data files, and wherein each of the twelve data files was released in a different month of the given year.
17. The method of claim 16, wherein the set age is eighteen years.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
February 8, 2017
August 9, 2022
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